Deterministic semi-blind detection of quasi-synchronous DS/CDMA signals using antenna arrays

Abstract

A deterministic semi-blind detector for quasi-synchronous DS/CDMA signals is proposed. The detector makes use of an antenna array for semi-blind separation and detection of the various users' signals in multipath environment. It is shown , through computer simulations, that the detector performs efficiently over small block sizes which is an advantage over statistical type detectors. Therefore, this deterministic detector is a suitable candidate for DS/CDMA signal detection in time-varying channels, such as in the mobile channel.